title: Correction of optical phase aberrations using binary-amplitude modulation.
abstract: We show that phase aberrations in an imaging system can be mitigated using binary-amplitude masks that reduce destructive interference in the image spatial frequency domain. Appropriately designed masks increase the magnitude of the optical transfer function and prevent nulls. This offers a low-cost, transmission-mode alternative to phase correction as used in active and adaptive optics, without a restriction on the waveband of operation.
authors.affiliation: School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
authors.forename: Tom
authors.initials: T
authors.lastname: Vettenburg
authors.forename: Andy R
authors.initials: AR
authors.lastname: Harvey